4-channel 150W Multi-mode Power Amplifier with Selectable Outputs

Series: NX

Model: nx 1504

Selectable 80Hz 2nd-order Hi-pass filter, limiter and input gain per channel
Remote DC level control per channel
Extensive protection circuitry, continuously variable cooling fan
Euroblock input connectors
Euroblock loudspeaker connectors

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NX Multi-Mode Power Amplifiers are designed to meet the most demanding live sound and fixed installation sound systems in stadiums, arenas, performance venues, worship spaces and convention centers.
Class-D Switching Amplifier Technology: NX features a universal switch-mode power supply with power factor correction (PFC) that operates from 70 to 270VAC.
Multi-Mode Operation: Selectable Outputs allow you to choose the desired output mode on each channel. Set the DIP-switch configuration for Low Impedance 2, 4 and 8 Ohm), or 25, 70, or 100V constant voltage and you’re set to go.
Energy Efficiency: NX has power-saving Ashly EMS™ (energy management system) which provides an automatic sleep-mode drawing less than 1W (defeatable).

Selectable 80Hz 2nd-order Hi-pass filter, limiter and input gain per channel
Remote DC level control per channel
Extensive protection circuitry, continuously variable cooling fan
Euroblock input connectors
Euroblock loudspeaker connectors
Detachable AC mains line-cord connector

Amplifier Type - Power Amplifier
ROHS Compliant - Yes
Warranty - Yes
Dante Enabled - Yes
Spec Sheet available - Yes

Depth: 14.54 in
Height: 1.75 in
Impedance: 8 ohm
Width: 19 in
Shipping Weight: 33.07 lbs
Power Handling: 150 Watt
Product Weight: 12.13 lbs
Warranty (Length/Type): 5 Year
Certifications: CE, FCC
Minimum Frequency Response (Bandwidth): 20 Hz
Minimum Frequency Response (Bandwidth): 0.02 kHz
Maximum Frequency Response (Bandwidth): 20000 Hz
Maximum Frequency Response (Bandwidth): 20 kHz
Signal to Noise Ratio: 99 dB
Number of Channels: 4
Total Harmonic Distortion + Noise (THD+N): 0.50 %
Operating Temperature (Maximum): 120.20 F
Operating Temperature (Minimum): 32 F
AC Voltage (Minimum): 70 Volts
AC Voltage (Maximum): 270 Volts
Shipping Width (with packaging): 25.20 in
Shipping Height (with packaging): 2.50 in
Shipping Depth (with packaging): 19.50 in
Max Output Power: Measured in Watts Per Channel, Low Impedance Output Mode, All Channels Driven at Rated Load:
•2 Ohms: 75
•4 Ohms: 75
•8 Ohms: 75
Low Impedance Output Mode, Bridged Output: Measured in Watts, All Channels Driven at Rated Load:
•4 Ohms: 150
•8 Ohms: 150
25V, 70V, 100V Constant Voltage Output Mode: Measured in Watts, All Channels Driven at Rated Load:
•25V(per channel): 75
•70V (per channel): 75
•100V (per channel): 75
Total AC Mains Power Draw: Measured in Watts, Typical input, all channels driven, 120VAC:
•Sleep Mode: less than 1
•Standby Mode: 25
•Idle (no signal): 53
•1/8 Max Power @ 2 Ohms: 230
Current Draw: Measured in Amps, Typical Input, Total for all Channels, 120VAC, Divide by 2 for 240VAC:
•Sleep Mode: 94mA
•Standby Mode; 0.27
•Idle (no input signal): 0.50
•1/8 Max Power @ 2 Ohms: 2.2
Thermal Dissipation: BTU/hr, Typical Input, Total for all Channels:
•Sleep mode: 2.14
•Standby mode: 86.4
•Idle (no input signal): 180
•1/8 Max Power @ 2 Ohms: 505
VOLTAGE GAIN: Selectable at 26dB, 32dB, 38dB, or 1.4V
Damping Factor: greater than 250 (8 Ohm load <1kHz)
Input High Pass Filter: 80Hz 2nd order
Channel Separation: -75dB (dB from full output, 1kHz)
Balanced Input Connector: Euroblock 3.5mm
INPUT IMPEDANCE: 10k Ohms
Maximum Input Level: +21dBu
Speaker Output Connector: Euroblock 7.62mm
Control Network: RJ-45 connector, 100MB Ethernet
AUX Output Connector: Balanced Euroblock 3.5mm
AUX Output Maximum Level: +21dBu
Remote Standby Contact Closure: Euroblock 3.5mm, close contact pin ground (G) for standby mode
Data connection: Euroblock 3.5mm - Gnd, +18V, Data Out, Data In
Fault Condition Logic Outputs: Euroblock 3.5mm - fault indicated by loss of 1Hz "heartbeat" pulse signal
Remote DC Level Control: Euroblock 3.5mm - Gnd, CV, V+ per input
Attenuators (per channel): Rear panel, software, offset link group, remote control. Fully off = Mute
Amplifier Protection: Shorted output power limiting, over-temperature, DC-output, power-supply fault, mains-fuses & inrush-current limiting
Cooling: Continuously variable temperature controlled fan
Power Requirements (@ 50/60Hz):
•Nominal Voltage Input: 120VAC - 240VAC
•Minimum power-up: 70VAC
•Power Supply Type: SMPS with active PFC Power Factor Correction)
•AC Mains Line Cord Connector: Detachable Nema 5-15 for USA (May vary for export)
Front Panel LED Indicators:
•POWER (white): Switch: On, Off, Standby (flashing)
•PROTECT (red): On (fault condition or shut down), Off
•SLEEP (blue): On, amplifier is asleep from audio inactivity
•DISABLE (yellow): On, power switch & attenuators are disabled
•COM (green): On, for Ethernet data or Device ID
•Per Channel:
•CLIP/MUTE (red): Clip @ 1dB below rated output / Mute
•SIGNAL (green): 18dB below rated output
•CURRENT (green): Brightness is proportional to output current
•TEMP (yellow): On dim at 90% max operating temperature, On full bright + protect at 100%
•BRIDGE (green): Per Channel Pair, On, Off
Remote Accessories:
•WR-1: 2-Channel Level Control
•WR-1.5: Level and Preset Recall
•WR-2: Four-Position Preset Recall Switch
•WR-5: Programmable Button Controller
•neWR-5: Programmable Network Button Controller
•Ashly Remote: Remote Control Application for Apple® iPad®, iPhone®, and iPod Touch®
4-channel 75W Multi-mode Power Amplifier with Selectable Outputs: 4-channel 75W Multi-mode Power Amplifier with Sele
NX Multi-Mode Power Amplifiers are designed to meet the most demanding live sound and fixed installation sound systems in stadiums, arenas, performance venues, worship spaces and convention centers.
Class-D Switching Amplifier Technology: NX fea: NX Multi-Mode Power Amplifiers are designed to mee
Selectable 80Hz 2nd-order Hi-pass filter, limiter and input gain per channel: Selectable 80Hz 2nd-order Hi-pass filter, limiter
Remote DC level control per channel: Remote DC level control per channel
Extensive protection circuitry, continuously variable cooling fan: Extensive protection circuitry, continuously varia
Euroblock input connectors: Euroblock input connectors
Euroblock loudspeaker connectors: Euroblock loudspeaker connectors
Detachable AC mains line-cord connector: Detachable AC mains line-cord connector